import pandas as pd
pd.set_option('display.unicode.east_asian_width',True)
df1=pd.DataFrame({'原时间信息':['02/28/2022 12:23:21']['2022.02.28']['2022/02/28']['20220228']['28-feb-2022']})
df1['转换后的时间']=pd.to_datetime(df1['原时间信息'])
print('时间的转换：\n',df1)
df2=pd.DataFrame({'year':['2020','2021','2022'],
                  'month':['1','6','12'],
                  'day': ['1', '30', '31'],
                  'hour': ['1', '13', '18'],
                  'minute': ['1', '14', '30'],
                  'second': ['1', '0', '0']
                  })
df2['组合后的时间']=pd.to_datetime(df2)
print('时间的组合：\n',df2)
df3=df2['组合后的时间']
df4=pd.DataFrame()
df4['年'], df4['月'], df4['日']=df3.dt.year,df3.dt.month,df3.dt.day
df4['时'], df4['分'], df4['秒']=df3.dt.year,df3.dt.minute,df3.dt.day
df4['星期'],df4['季度']=df3.dt.weekday+1,df3.dt.quarrer
df4['是否年底'],df4['是否月底']=df3.dt.is_year_end,df3.dt.is_month_end
print(df4)
